JP3900113B2 - Conveyor device driven by a plurality of driving devices - Google Patents
Conveyor device driven by a plurality of driving devices Download PDFInfo
- Publication number
- JP3900113B2 JP3900113B2 JP2003152549A JP2003152549A JP3900113B2 JP 3900113 B2 JP3900113 B2 JP 3900113B2 JP 2003152549 A JP2003152549 A JP 2003152549A JP 2003152549 A JP2003152549 A JP 2003152549A JP 3900113 B2 JP3900113 B2 JP 3900113B2
- Authority
- JP
- Japan
- Prior art keywords
- drive
- driving
- endless
- devices
- stretch member
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Control Of Conveyors (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Description
【0001】
【発明の属する技術分野】
本発明は、複数の駆動装置により駆動されるコンベア装置に関わり、更に詳しくは、駆動装置間のテークアップ装置が無い側のチェーン又はベルト等の無端状張架部材の弛みを準備運転時又は運転開始時等に短時間で吸収し、前記無端状張架部材の張力を適正範囲とした状態で、前記駆動装置間の相対的な原点合わせを短時間で行うことができる、複数の駆動装置により駆動されるコンベア装置に関するものである。
【0002】
【従来の技術】
例えば非常に長いコンベア等においては、1個の駆動装置による運転ではスプロケット間又はプーリ間に張架されているチェーン又はベルト等の無端状張架部材の張力が不足する場合があるため、複数の駆動装置による運転により前記無端状張架部材の張力の分散を図る、複数の駆動装置により駆動されるコンベア装置がある。
【0003】
このような従来の複数の駆動装置により駆動されるコンベア装置として、シンクロ発信機及びシンクロ受信機を用い、駆動スプロケット及び複数のキャタピラーチェーン駆動機構を駆動する各油圧モータへの油の吐出量を制御して各油圧モータの同期運転を行い、各駆動装置にかかるコンベア装置の負荷を平均的に分割するもの(特許文献1参照。)、複数駆動源乗客コンベアの無端状のステップチェーンに囲まれた領域内に複数配置した走行駆動源のうちで、より上方に位置する走行駆動源の駆動力がより大きくなるように制御することにより、全てのステップチェーンの張力を正に保持し、省スペース化及びステップ同士の衝突防止の確実化を図るもの(特許文献2参照。)等がある。
【0004】
【特許文献1】
特開昭48−81270号公報(第1―2頁、図面)
【特許文献2】
特開2001−163563号公報(第4―5頁、図1―2、図4)
【0005】
【発明が解決しようとする課題】
以上のような従来の複数の駆動装置により駆動されるコンベア装置においては、特にコンベアが長い場合において、使用により生じる駆動装置間のチェーン又はベルト等の無端状張架部材の伸び及び摩耗による弛みに対する配慮がなされていないという問題点があった。したがって、従来の複数の駆動装置により駆動されるコンベア装置では、前記駆動装置間のテークアップ装置が無い側の前記無端状張架部材の弛みを吸収して張力を適正範囲とした状態で行う、前記駆動装置間の相対的な原点合わせ作業を短時間で行うことができず、生産性が低下するという問題点があった。
【0006】
例えば、シンクロ発信機及びシンクロ受信機を用いる構成のものでは、シンクロ発信機及びシンクロ受信機の位相差に比例した出力電圧を利用しているため、チェーンの弛みを修正する場合及びコンベア装置の設置時等において、シンクロ発信機及びシンクロ受信機の回転角度を同じにするための位相角度調整作業(前記原点合わせ作業。具体的には、歯車の噛み合わせ変更等の機械的な調整作業。)に時間が掛かる。
【0007】
本発明は、以上のような状況を鑑みてなされたものであり、駆動装置間のテークアップ装置が無い側のチェーン又はベルト等の無端状張架部材の弛みを準備運転時又は運転開始時等に短時間で吸収し、前記無端状張架部材の張力を適正範囲とした状態で、前記駆動装置間の相対的な原点合わせを短時間で行うことができるため、生産性を向上することができる、複数の駆動装置により駆動されるコンベア装置を得ることを目的とする。
【0008】
【課題を解決するための手段】
本発明に係る複数の駆動装置により駆動されるコンベア装置は、前述の課題解決のために、複数の駆動装置間の相対的な原点合わせを行った後に同期運転を行う、複数の駆動装置により駆動されるコンベア装置において、チェーン又はベルト等の無端状張架部材と、前記無端状張架部材に係合するスプロケット又はプーリ等の回転体、及び/又は、駆動輪を備えると共に前記無端状張架部材に係合する無限軌道、並びに、前記回転体又は無限軌道の駆動輪を駆動するモータにより構成される、少なくとも2個の駆動装置と、隣接する駆動装置間において、上流側駆動装置を非駆動状態として前記無端状張架部材の駆動により該駆動装置の前記回転体又は無限軌道の駆動輪を回転可能にし、下流側駆動装置を駆動して前記駆動装置間の無端状張架部材の弛みを吸収すると共に、前記下流側駆動装置による前記無端状張架部材の駆動により前記非駆動状態の上流側駆動装置の前記回転体又は無限軌道の駆動輪を所定量回転させた後に前記下流側駆動装置を停止させ、前記駆動装置間の無端状張架部材の張力を緩和するために前記上流側駆動装置を駆動して該駆動装置の前記回転体又は無限軌道の駆動輪を所定量回転させた状態で、前記隣接する駆動装置間の相対的な原点合わせを行う制御装置とを備えたものである。
【0009】
また、本発明に係る複数の駆動装置により駆動されるコンベア装置は、前述の課題解決のために、複数の駆動装置間の相対的な原点合わせを行った後に同期運転を行う、複数の駆動装置により駆動されるコンベア装置において、チェーン又はベルト等の無端状張架部材と、前記無端状張架部材に係合するスプロケット又はプーリ等の回転体、及び/又は、駆動輪を備えると共に前記無端状張架部材に係合する無限軌道、並びに、前記回転体又は無限軌道の駆動輪を駆動するモータにより構成される、少なくとも2個の駆動装置と、前記回転体又は無限軌道の駆動輪の回転角度を検出する絶対位置検出器と、隣接する駆動装置間において、上流側駆動装置を非駆動状態として前記無端状張架部材の駆動により該駆動装置の前記回転体又は無限軌道の駆動輪を回転可能にし、下流側駆動装置を駆動して前記駆動装置間の無端状張架部材の弛みを吸収し、さらに前記下流側駆動装置による前記無端状張架部材の駆動により前記上流側駆動装置の前記回転体又は無限軌道の駆動輪を回転させ、前記上流側駆動装置の絶対位置検出器の出力パルスの変化量が、前記駆動装置間の無端状張架部材の張力が適正範囲を超える大きさになる出力パルスの所定変化量になった時に前記下流側駆動装置を停止させ、前記上流側駆動装置を駆動して、前記上流側駆動装置の絶対位置検出器の出力パルスの変化量が前記駆動装置間の無端状張架部材の張力が適正範囲になる出力パルスの所定変化量になった時に前記上流側駆動装置を停止させることにより、前記駆動装置間の無端状張架部材の張力を適正範囲とした状態で、前記隣接する駆動装置間の相対的な原点合わせを行う制御装置とを備えたものである。
【0010】
さらに、本発明に係る複数の駆動装置により駆動されるコンベア装置は、前述の課題解決のために、複数の駆動装置間の相対的な原点合わせを行った後に同期運転を行う、複数の駆動装置により駆動されるコンベア装置において、チェーン又はベルト等の無端状張架部材と、前記無端状張架部材に係合するスプロケット又はプーリ等の回転体、及び/又は、駆動輪を備えると共に前記無端状張架部材に係合する無限軌道、並びに、前記回転体又は無限軌道の駆動輪を駆動するモータにより構成される、少なくとも2個の駆動装置と、前記回転体又は無限軌道の駆動輪の回転角度を検出する絶対位置検出器と、隣接する駆動装置間において、上流側駆動装置のブレーキをオフにし、該上流側駆動装置を非駆動状態として前記無端状張架部材の駆動により該駆動装置の前記回転体又は無限軌道の駆動輪を回転可能にし、下流側駆動装置を駆動し、前記駆動装置間の無端状張架部材の弛みを吸収し、さらに前記下流側駆動装置による前記無端状張架部材の駆動により前記上流側駆動装置の前記回転体又は無限軌道の駆動輪を回転させ、前記上流側駆動装置の絶対位置検出器の出力パルスの変化量が、前記駆動装置間の無端状張架部材の張力が適正範囲を超える大きさになる出力パルスの所定変化量になった時に前記下流側駆動装置を停止させ、前記下流側駆動装置のブレーキをオンにし、前記上流側駆動装置を駆動して、前記上流側駆動装置の絶対位置検出器の出力パルスの変化量が前記駆動装置間の無端状張架部材の張力が適正範囲になる出力パルスの所定変化量になった時に前記上流側駆動装置を停止させることにより、前記駆動装置間の無端状張架部材の張力を適正範囲とした状態で、前記隣接する駆動装置間の相対的な原点合わせを行う制御装置とを備えたものである。
【0011】
ここで、前記駆動装置間の無端状張架部材の張力が適正範囲を超える大きさになる出力パルスの所定変化量及び前記駆動装置間の無端状張架部材の張力が適正範囲になる出力パルスの所定変化量を、予め実験により求めて前記制御装置内の記憶装置に保存しておき、該保存データを前記制御装置による制御動作時に使用すると好ましい。
【0012】
また、前記制御装置が、前記相対的な原点合わせを任意の隣接する駆動装置間で行った後、さらに前記相対的な原点合わせを隣接する駆動装置との間で順次行うことにより、全部の駆動装置の相対的な原点合わせを行うものであると好ましい。
【0013】
【発明の実施の形態】
次に本発明の実施の形態を添付図面に基づき詳細に説明するが、本発明は、添付図面に示された形態に限定されず特許請求の範囲に記載の要件を満たす実施形態の全てを含むものである。
【0014】
また、以下の説明においては、動力伝達機構として、チェーン及びスプロケットによる構成を採用した例を示すが、ベルト及びプーリによる構成等、チェーン以外の無端状張架部材を用いる構成を採用することもできる。
【0015】
図1は、本発明の実施の形態に係る複数の駆動装置により駆動されるコンベア装置1の駆動系の構成例を説明するためのブロック図であり、駆動装置が2個の場合の例を示している。下流側駆動装置D1は、スプロケットS1、モータM1及びブレーキB1により構成されており、上流側駆動装置D2は、スプロケットS2、モータM2及びブレーキB2により構成されている。図1の例では、モータM1及びM2が、誘導電動機である場合を示しているが、モータM1及びM2は誘導電動機に限定されるものではなく、サーボモータ、サイリスタモータ、又は、誘導電動機と渦電流継手を組み合わせた渦電流継手電動機等を用いることもできる。また、ブレーキB1及びB2としては、励磁制動形ブレーキ又はスプリング制動形ブレーキ等を用いることができる。さらに、図1の例では、モータM1及びM2を、各々スプロケットS1及びS2と同軸に連結する場合を示しているが、モータM1及びM2を、各々スプロケットS1及びS2と、同軸ではなく、チェーン又はベルト等を介して連結してもよい。
【0016】
動力伝達機構を構成する無端状張架部材であるチェーン2は、回転体であるスプロケットS1,S2間に張架されており、テークアップ装置3によりチェーン2に張力が付与される。スプロケットS1,S2の回転角度は、例えば光学式アブソリュートエンコーダ又は磁気式アブソリュートエンコーダ等である絶対位置検出器E1,E2により検出され、例えばプログラマブルコントローラである制御装置4の入力部4aに入力され、記憶装置4bに保存される。
【0017】
下流側駆動装置D1の駆動は、制御装置4の演算装置4cにより演算して作成した制御信号を出力部4dを介して駆動回路5に送り、該駆動回路5によりモータM1を駆動することにより行われる。また、上流側駆動装置D2の駆動は、制御装置4の演算装置4cにより演算して作成した制御信号を出力部4dを介して駆動回路6に送り、該駆動回路6によりモータM2を駆動することにより行われる。ここで、駆動回路5及び6としては、例えば電圧形インバータ、電流形インバータ又はPWMインバータ等を用いることができる。
【0018】
また、スプロケットS1,S2間のチェーン2に弛みが無く張力が適正である状態において、絶対位置検出器E1及び絶対位置検出器E2の相対的な原点合わせを行う。即ち、制御装置4の演算装置4cにより、原点合わせ時における絶対位置検出器E1の出力データORIG1と絶対位置検出器E2の出力データORIG2とを比較し、その差分(ORIG1−ORIG2)を求めて絶対位置検出器E2の出力データに加算して絶対位置検出器E1の出力データとの比較の基準とする。制御装置4により、このような相対的な原点合わせ後の下流側駆動装置D1の絶対位置検出器E1の出力データOUT1と上流側駆動装置D2の絶対位置検出器E2の出力データOUT2の比較基準値(OUT2+ORIG1−ORIG2)との差を制御装置4により監視し、この差分に比例した速度補正電圧指令を駆動回路6に送り、駆動装置D2の駆動速度を補正することにより、チェーン2の牽引量の累積差を一定範囲に保った状態で、駆動装置D1及びD2の同期運転を行うことができる。
【0019】
このような同期運転によりコンベア装置を継続使用した場合、特にコンベアが長い場合においては、駆動装置D1,D2間のチェーン2の伸び及び摩耗による弛みが生じることになる。テークアップ装置3を使用しているが、駆動装置D1,D2間のテークアップ装置が無い側(図1中L)では、チェーン2の前記弛みを吸収することができない。
【0020】
本発明は、このような駆動装置間のテークアップ装置が無い側のチェーン又はベルト等の無端状張架部材の弛みを準備運転時又は運転開始時等に短時間で吸収して、駆動装置間のテークアップ装置が無い側の前記無端状張架部材の張力を適正範囲として前記駆動装置間の相対的な原点合わせを短時間で行うものであり、以下において、その動作シーケンスを説明する。
【0021】
(1)駆動装置D2のブレーキB2を非作動状態(以下、「オフ」という。)にし、駆動装置D1を駆動する。
この結果、まず駆動装置D1,D2間のテークアップ装置が無い側(図1中L)のチェーン2の弛みがテークアップ装置3側へ吸収され、次に駆動装置D1,D2間のテークアップ装置が無い側(図1中L)のチェーン2が緊張し、駆動していない駆動装置D2が駆動装置D1によるチェーン2の駆動により回転させられる。
【0022】
(2)駆動装置D1によるチェーン2の駆動により回転させられた駆動装置D2の絶対位置検出器E2の出力パルスの変化量が、駆動装置D1,D2間のテークアップ装置が無い側(図1中L)のチェーン2の張力が適正範囲を超える大きさになる出力パルスの所定変化量(第1の出力パルス所定変化量)になった時に駆動装置D1を停止する(駆動装置D1のブレーキB1を作動状態(以下、「オン」という。)にする)。また、駆動装置D1のブレーキB1のオンと同時に駆動装置D2のブレーキB2をオンにする。
ここで、前記第1の出力パルス所定変化量は、前記チェーン2の張力が適正範囲を超える大きさになる値を予め実験により求めて制御装置4内の記憶装置4bに保存しておき、この保存データを前記駆動装置D1の駆動時に使用する。
(チェーン2の張力の適正範囲については以下の(3)参照。)
【0023】
なお、複数の駆動装置によるコンベアの駆動は、特にコンベアが長い場合に使用される構成であり、前記のように駆動装置D1のみを駆動して、非常に長いチェーン2の弛みを吸収してさらに駆動装置D1によるチェーン2の駆動により駆動装置D2を回転させるためには非常に大きなトルクを必要とする。したがって、チェーン2の弛みを吸収後、駆動装置D1によるチェーン2の駆動により駆動装置D2を回転させた状態では、通常、駆動装置D1,D2間のテークアップ装置が無い側(図1中L)のチェーン2の張力は適正範囲を超える大きさになっている。したがって、以下の(3)のように、チェーン2の張力を緩和する動作が必要となる。
【0024】
(3)(2)の状態では駆動装置D1,D2間のテークアップ装置が無い側(図1中L)のチェーン2の張力が適正範囲を超える大きさになっているため、前記張力を緩和して前記チェーン2の張力を適正範囲とするために以下の動作を行う。
駆動装置D1を停止した状態で、前記チェーン2の張力緩和のために駆動装置D2を駆動し、絶対位置検出器E2の出力パルスの変化量が、前記チェーン2の張力が適正範囲になる出力パルスの所定変化量(第2の出力パルス所定変化量)になった時に駆動装置D2を停止する(駆動装置D2のブレーキB2をオンにする)。
この動作により、前記チェーン2の張力を緩和して適正範囲にすることができるため、駆動装置D1及びD2の負荷を軽減することができる。
【0025】
ここで、駆動装置D1,D2間のテークアップ装置が無い側(図1中L)のチェーン2の張力の適正範囲は、コンベアシステムの構成(水平部分のみのもの、傾斜部分の昇降があるもの等)、搬送重量、スプロケットS1,S2間の距離、スプロケットS1,S2の径、チェーン2のサイズ・構造・材質等の諸元、搬送のタクトタイム等により異なるものである。したがって、これらの仕様及び前記第1の出力パルス所定変化量に応じて、前記張力が適正範囲となるように、前記第2の出力パルス所定変化量を予め実験により求めて制御装置4内の記憶装置4bに保存しておき、前記駆動装置D2の駆動時に使用する。
【0026】
なお、このようなチェーン2の張力緩和のための駆動装置D2の駆動は、タイマーにより駆動装置D2を所定時間駆動すること等によっても実現することができる。
【0027】
(4)このように前記チェーン2の張力を緩和して適正範囲にした状態で、駆動装置D1の絶対位置検出器E1と駆動装置D2の絶対位置検出器E2の相対的な原点合わせを前記のように行う。
【0028】
以上の動作は、制御装置4により、絶対位置検出器E1及びE2の出力データを入力部4aに取り込んで演算装置4cで演算すること、駆動回路5及び6を制御してモータM1及びM2を駆動すること、並びに、ブレーキB1及びB2のオン・オフを制御すること、により行うことができる。
【0029】
なお、前記動作シーケンスの(2)と(3)の間に、ブレーキB1及びB2を一定時間オフとする動作を加えることもできる。この動作により長いチェーン2の張力をより均一にすることができる。
【0030】
また、前記第1の出力パルス所定変化量及び第2の出力パルス所定変化量は、前記のとおり仕様により異なる値となるものであるが、コンベアの長さが約180m、搬送ピッチが約6.7m、絶対位置検出器E1及びE2の分解能が720パルス、コンベア速度が約4.4m/minである場合の例で、第1の出力パルス所定変化量を20パルス、第2の出力パルス所定変化量を3パルスとすることにより、準備運転時又は運転開始時において、短時間で前記無端状張架部材の弛みを吸収し、前記無端状張架部材の張力を適正範囲として駆動装置D1及びD2の同期運転の相対的な原点合わせを短時間で行うことができた。
【0031】
図2は、本発明の実施の形態に係る複数の駆動装置により駆動されるコンベア装置1の構成を示す説明図であり、駆動装置がn個の場合の例を示している。説明の簡略化のために、テークアップ装置3、制御装置4、駆動回路5及び6は省略しているが、これらの構成は図1の構成と同様である。図2において、複数の駆動装置を最下流からD1,D2,D3,・・・,Dn−1,Dnとしており、駆動装置Dk(1≦k≦n,k及びnは自然数)は、スプロケットSk、モータMk及びブレーキBkにより構成されている。
【0032】
以下において、図2のように駆動装置がn個の場合における、前記無端状張架部材の弛みを準備運転時又は運転開始時等に短時間で吸収して、隣接する駆動装置間のテークアップ装置が無い側の無端状張架部材の張力を適正範囲として隣接する駆動装置間の相対的な原点合わせを短時間で行う動作シーケンスを説明する。
【0033】
なお、以下における、隣接する駆動装置間のテークアップ装置が無い側のチェーン2の張力が適正範囲を超える大きさになる、下流側駆動装置によるチェーン2の駆動により回転させられる上流側駆動装置の絶対位置検出器の出力パルスの所定変化量(第1の出力パルス所定変化量)、及び、隣接する駆動装置間のテークアップ装置が無い側のチェーン2の張力が適正範囲になる、チェーン2の張力緩和のために駆動する上流側駆動装置の絶対位置検出器の出力パルスの所定変化量(第2の出力パルス所定変化量)は、前記図1の説明と同様に予め実験により求め、制御装置4内の記憶装置4bに保存しておく。
【0034】
(1)駆動装置D2,・・・,Dnの各ブレーキB2,・・・,Bnをオフにし、駆動装置D1を駆動する。
【0035】
この結果、まず駆動装置D1,D2間のテークアップ装置が無い側(図2中L12)のチェーン2の弛みが吸収され、次に駆動装置D1,D2間のテークアップ装置が無い側(図2中L12)のチェーン2が緊張し、駆動していない駆動装置D2が駆動装置D1によるチェーン2の駆動により回転させられる。
【0036】
(2)駆動装置D1によるチェーン2の駆動により回転させられた駆動装置D2の絶対位置検出器E2の出力パルスの変化量が、前記第1の出力パルス所定変化量になった時に駆動装置D1を停止する(駆動装置D1のブレーキB1をオンにする)。また、駆動装置D2,D3,・・・,Dnの各ブレーキB2,B3,・・・,Bnをオンにする。
【0037】
(3)この状態では、駆動装置D1,D2間のテークアップ装置が無い側(図2中L12)のチェーン2の張力が適正範囲を超える大きさになっているため、前記張力を緩和してチェーン2の張力を適正範囲とするために以下の動作を行う。
駆動装置D1を停止した状態で、駆動装置D2,D3,・・・,Dnを駆動し、絶対位置検出器E2の出力パルスの変化量が、前記第2の出力パルス所定変化量になった時に駆動装置D2,D3,・・・,Dnを停止する(ブレーキB2,B3,・・・,Bnをオンにする)。
この動作により、駆動装置D1,D2間のテークアップ装置が無い側(図2中L12)のチェーン2の張力を緩和して適正範囲にすることができる。
【0038】
(4)この状態で、駆動装置D1の絶対位置検出器E1と駆動装置D2の絶対位置検出器E2の相対的な原点合わせを前記のように行う。
【0039】
(5)駆動装置D3,・・・,Dnの各ブレーキB3,・・・,Bnをオフにし、駆動装置D1及びD2を駆動する。
この結果、まず駆動装置D2,D3間のテークアップ装置が無い側(図2中L23)のチェーン2の弛みが吸収され、次に駆動装置D2,D3間のテークアップ装置が無い側(図2中L23)のチェーン2が緊張し、駆動していない駆動装置D3が駆動装置D1及びD2によるチェーン2の駆動により回転させられる。
【0040】
(6)駆動装置D1及びD2によるチェーン2の駆動により回転させられた駆動装置D3の絶対位置検出器E3の出力パルスの変化量が、前記第1の出力パルス所定変化量になった時に駆動装置D1及びD2を停止する(駆動装置D1及びD2のブレーキB1及びB2をオンにする)。また、駆動装置D3,・・・,Dnの各ブレーキB3,・・・,Bnをオンにする。
【0041】
(7)この状態では、駆動装置D2,D3間のテークアップ装置が無い側(図2中L23)のチェーン2の張力が適正範囲を超える大きさになっているため、前記張力を緩和してチェーン2の張力を適正範囲とするために以下の動作を行う。
駆動装置D1及びD2を停止した状態で、駆動装置D3,・・・,Dnを駆動し、絶対位置検出器E3の出力パルスの変化量が、前記第2の出力パルス所定変化量になった時に駆動装置D3,・・・,Dnを停止する(ブレーキB3,・・・,Bnをオンにする)。
この動作により、駆動装置D2,D3間のテークアップ装置が無い側(図2中L23)のチェーン2の張力を緩和して適正範囲にすることができる。
【0042】
(8)この状態で、駆動装置D1の絶対位置検出器E1(又は駆動装置D2の絶対位置検出器E2)と駆動装置D3の絶対位置検出器E3の相対的な原点合わせを前記のように行う。
【0043】
(9)以下同様に、駆動装置Dn−2,Dn−1間までのチェーン2の張力調整及び駆動装置の相対的な原点合わせを行う。
【0044】
(10)駆動装置DnのブレーキBnをオフにし、駆動装置D1,D2,D3,・・・,Dn−1を駆動する。
この結果、まず駆動装置Dn−1,Dn間のテークアップ装置が無い側(図2中Ln−1n)のチェーン2の弛みが吸収され、次に駆動装置Dn−1,Dn間のテークアップ装置が無い側(図2中Ln−1n)のチェーン2が緊張し、駆動していない駆動装置Dnが駆動装置D1,D2,D3,・・・,Dn−1によるチェーン2の駆動により回転させられる。
【0045】
(11)駆動装置D1,D2,D3,・・・,Dn−1によるチェーン2の駆動により回転させられた駆動装置Dnの絶対位置検出器Enの出力パルスの変化量が、前記第1の出力パルス所定変化量になった時に駆動装置D1,D2,D3,・・・,Dn−1を停止する(B1,B2,B3,・・・,Bn−1をオンにする)。また、駆動装置DnのブレーキBnをオンにする。
【0046】
(12)この状態では、駆動装置Dn−1,Dn間のテークアップ装置が無い側(図2中Ln−1n)のチェーン2の張力が適正範囲を超える大きさになっているため、前記張力を緩和してチェーン2の張力を適正範囲とするために以下の動作を行う。
駆動装置D1,D2,D3,・・・,Dn−1を停止した状態で、駆動装置Dnを駆動し、絶対位置検出器Enの出力パルスの変化量が、前記第2の出力パルス所定変化量になった時に駆動装置Dnを停止する(ブレーキBnをオンにする)。
この動作により、駆動装置Dn−1,Dn間のテークアップ装置が無い側(図2中Ln−1n)のチェーン2の張力を緩和して適正範囲にすることができる。
【0047】
(13)この状態で、駆動装置D1の絶対位置検出器E1(又は駆動装置Dn−1の絶対位置検出器En−1)と駆動装置Dnの絶対位置検出器Enの相対的な原点合わせを前記のように行う。
【0048】
なお、以上の図2における駆動装置がn個の構成の場合の動作シーケンスにおいては、前記隣接する駆動装置間の張力調整及び駆動装置の相対的な原点合わせを、まず最下流側で行い順次上流側へ向かって行う場合を示したが、n個の駆動装置の任意の隣接する駆動装置間で行った後、さらに隣接する駆動装置との間で相対的な原点合わせを順次行うシーケンスを採用してもよい。
【0049】
以上のように、n個の駆動装置における隣接する駆動装置間の張力調整及び駆動装置の相対的な原点合わせを制御装置4により順次行うことにより、n個の駆動装置全部の相対的な原点合わせを短時間で自動的に行うことができる。
【0050】
以上においては、スプロケットによりチェーン2を直接駆動する、いわゆるスプロケットドライブの駆動装置について説明したが、駆動輪を備えた無限軌道をチェーン2に係合させ、前記無限軌道を駆動することによりチェーン2を間接駆動する、いわゆるキャタピラドライブの駆動装置であってもよい。
【0051】
【発明の効果】
この発明に係る複数の駆動装置により駆動されるコンベア装置は、以上説明したように構成されているので、隣接する駆動装置間のテークアップ装置が無い側のチェーン又はベルト等の無端状張架部材の弛みを準備運転時又は運転開始時等に短時間で吸収し、前記無端状張架部材の張力を適正範囲とした状態で、前記駆動装置間の相対的な原点合わせを短時間で行うことができるため、生産性を向上することができるという効果を奏する。
【図面の簡単な説明】
【図1】本発明の実施の形態に係る複数の駆動装置により駆動されるコンベア装置が駆動装置が2個である場合の駆動系の構成例を説明するためのブロック図である。
【図2】本発明の実施の形態に係る複数の駆動装置により駆動されるコンベア装置の構成が駆動装置がn個の場合の例を示す説明図である。
【符号の説明】
1 コンベア装置
2 チェーン
3 テークアップ装置
4 制御装置
4a 入力部
4b 記憶装置
4c 演算装置
4d 出力部
5,6 駆動回路
D1,D2,・・・,Dn 駆動装置
S1,S2,・・・,Sn スプロケット
M1,M2,・・・,Mn モータ
B1,B2,・・・,Bn ブレーキ
E1,E2,・・・,En 絶対位置検出器
L,L12,L23,Ln−1n 駆動装置間のテークアップ装置が無い側[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a conveyor device driven by a plurality of driving devices, and more specifically, a slack of an endless stretch member such as a chain or a belt on the side where there is no take-up device between the driving devices. By a plurality of driving devices that can absorb in a short time at the start, etc., and can perform relative origin adjustment between the driving devices in a short time in a state where the tension of the endless stretch member is within an appropriate range The present invention relates to a driven conveyor device.
[0002]
[Prior art]
For example, in a very long conveyor, the tension of an endless stretch member such as a chain or belt stretched between sprockets or between pulleys may be insufficient in operation with one drive device. There is a conveyor device driven by a plurality of driving devices that distributes the tension of the endless stretch member by operation of the driving device.
[0003]
As a conveyor device driven by such a plurality of conventional drive devices, a synchro transmitter and a sync receiver are used to control the amount of oil discharged to each hydraulic motor that drives the drive sprocket and the plurality of caterpillar chain drive mechanisms. Then, each hydraulic motor is operated synchronously, and the load of the conveyor device applied to each drive device is divided on average (see Patent Document 1), surrounded by an endless step chain of a multi-drive source passenger conveyor By controlling so that the driving force of the traveling drive source located in the upper part among the traveling drive sources arranged in the area becomes larger, the tension of all step chains is kept positive, saving space. In addition, there is one that ensures the prevention of collision between steps (see Patent Document 2).
[0004]
[Patent Document 1]
Japanese Patent Laid-Open No. 48-81270 (page 1-2, drawing)
[Patent Document 2]
JP 2001-163563 A (page 4-5, FIG. 1-2, FIG. 4)
[0005]
[Problems to be solved by the invention]
In the conveyor device driven by a plurality of conventional driving devices as described above, particularly when the conveyor is long, the endless stretch member such as a chain or a belt between the driving devices caused by use is prevented from slackening due to elongation and wear. There was a problem that no consideration was given. Therefore, in a conveyor device driven by a plurality of conventional driving devices, the slack of the endless stretch member on the side where there is no take-up device between the driving devices is absorbed and the tension is set in an appropriate range. There is a problem in that the relative origin adjustment operation between the drive devices cannot be performed in a short time, and the productivity is lowered.
[0006]
For example, in a configuration using a synchro transmitter and a sync receiver, an output voltage proportional to the phase difference between the sync transmitter and the sync receiver is used, so the chain slack is corrected and the conveyor device is installed. In some cases, for phase angle adjustment work (the origin adjustment work, specifically, mechanical adjustment work such as gear meshing change) for making the rotation angle of the synchro transmitter and sync receiver the same. It takes time.
[0007]
The present invention has been made in view of the situation as described above, such as loosening an endless stretch member such as a chain or belt on the side where there is no take-up device between drive devices at the time of preparation operation or operation start, etc. The relative origin of the drive devices can be adjusted in a short time in a state where the tension of the endless stretch member is within an appropriate range, thereby improving productivity. An object is to obtain a conveyor device that can be driven by a plurality of driving devices.
[0008]
[Means for Solving the Problems]
A conveyor device driven by a plurality of driving devices according to the present invention is driven by a plurality of driving devices that perform synchronous operation after performing relative origin adjustment between the plurality of driving devices in order to solve the above-described problems. The conveyor device includes an endless stretch member such as a chain or a belt, a rotating body such as a sprocket or a pulley engaged with the endless stretch member, and / or a drive wheel, and the endless stretch member. The upstream drive device is not driven between at least two drive devices and an adjacent drive device, which are constituted by an endless track that engages with a member and a motor that drives the rotating body or drive wheels of the endless track. Status As By driving the endless stretch member The rotating body of the driving device or the driving wheel of an endless track The downstream drive device is driven to absorb the slack of the endless stretch member between the drive devices, and the downstream drive device drives the endless stretch member to the upstream of the non-driven state. Side drive device The rotating body or driving wheel of an endless track The downstream drive device is stopped after rotating a predetermined amount, and the upstream drive device is driven to relieve the tension of the endless stretch member between the drive devices. The rotating body of the driving device or the driving wheel of an endless track And a control device that performs relative origin alignment between the adjacent drive devices in a state where the drive device is rotated by a predetermined amount.
[0009]
In addition, a conveyor device driven by a plurality of driving devices according to the present invention has a plurality of driving devices that perform synchronous operation after performing relative origin alignment between the plurality of driving devices in order to solve the above-described problem. In the conveyor device driven by the endless stretch member such as a chain or a belt, a rotating body such as a sprocket or a pulley engaged with the endless stretch member, and / or a drive wheel and the endless shape At least two drive units configured by an endless track that engages with a tension member and a motor that drives the rotating body or driving wheels of the endless track, and a rotation angle of the rotating body or driving wheels of the endless track The upstream drive unit is not driven between the absolute position detector for detecting As By driving the endless stretch member The rotating body of the driving device or the driving wheel of an endless track The upstream drive device is driven to rotate, absorb the slack of the endless stretch member between the drive devices, and further drive the endless stretch member by the downstream drive device. The rotating body or driving wheel of an endless track , And the amount of change in the output pulse of the absolute position detector of the upstream drive device becomes a predetermined change amount of the output pulse that makes the tension of the endless stretch member between the drive devices exceed the appropriate range. The downstream drive device is stopped when the upstream drive device is driven, and the amount of change in the output pulse of the absolute position detector of the upstream drive device is reduced between the drive devices. The upstream drive device is stopped when the output pulse reaches a predetermined change amount in which the tension is in an appropriate range, so that the endless tension member between the drive devices is in an appropriate range with the tension in the adjacent range. And a control device that performs relative origin adjustment between the driving devices.
[0010]
Furthermore, a conveyor device driven by a plurality of drive devices according to the present invention performs a synchronous operation after performing relative origin alignment between the plurality of drive devices in order to solve the above-described problems. In the conveyor device driven by the endless stretch member such as a chain or a belt, a rotating body such as a sprocket or a pulley engaged with the endless stretch member, and / or a drive wheel and the endless shape At least two drive units configured by an endless track that engages with a tension member and a motor that drives the rotating body or driving wheels of the endless track, and a rotation angle of the rotating body or driving wheels of the endless track Between the absolute position detector that detects the , The upstream drive device Non-driven state As By driving the endless stretch member The rotating body of the driving device or the driving wheel of an endless track The upstream drive device is configured to be rotatable, drive the downstream drive device, absorb the slack of the endless stretch member between the drive devices, and drive the endless stretch member by the downstream drive device. The rotating body or driving wheel of an endless track , And the amount of change in the output pulse of the absolute position detector of the upstream drive device becomes a predetermined change amount of the output pulse that makes the tension of the endless stretch member between the drive devices exceed the appropriate range. The downstream drive device is stopped, the brake of the downstream drive device is turned on, the upstream drive device is driven, and the amount of change in the output pulse of the absolute position detector of the upstream drive device is The tension of the endless stretch member between the drive devices is stopped by stopping the upstream drive device when the tension of the endless stretch member between the drive devices reaches a predetermined change amount of the output pulse within an appropriate range. And a control device that performs relative origin alignment between the adjacent drive devices in a state in which is set to an appropriate range.
[0011]
Here, the predetermined change amount of the output pulse that makes the tension of the endless stretch member between the drive devices exceed the appropriate range, and the output pulse that the tension of the endless stretch member between the drive devices becomes the proper range It is preferable that the predetermined change amount is obtained in advance by experiment and stored in a storage device in the control device, and the stored data is used during a control operation by the control device.
[0012]
Further, after the control device performs the relative origin adjustment between any adjacent driving devices, the control device sequentially performs the relative origin adjustment with the adjacent driving devices, so that all the driving operations are performed. It is preferable that the relative origin of the apparatus is adjusted.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Next, embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the present invention is not limited to the embodiments shown in the accompanying drawings, and includes all the embodiments that satisfy the requirements described in the claims. It is a waste.
[0014]
Further, in the following description, an example in which a configuration using a chain and a sprocket is adopted as the power transmission mechanism is shown, but a configuration using an endless stretch member other than the chain, such as a configuration using a belt and a pulley, can also be adopted. .
[0015]
FIG. 1 is a block diagram for explaining a configuration example of a drive system of a
[0016]
The chain 2 that is an endless stretch member constituting the power transmission mechanism is stretched between the
[0017]
The downstream drive device D1 is driven by sending a control signal calculated by the
[0018]
Further, relative origin adjustment of the absolute position detector E1 and the absolute position detector E2 is performed in a state where the chain 2 between the sprockets S1 and S2 is not slack and the tension is appropriate. That is, the
[0019]
When the conveyor device is continuously used by such a synchronous operation, particularly when the conveyor is long, the chain 2 between the driving devices D1 and D2 is loosened due to elongation and wear. Although the take-up device 3 is used, the slack of the chain 2 cannot be absorbed on the side where there is no take-up device between the drive devices D1 and D2 (L in FIG. 1).
[0020]
The present invention absorbs the slack of an endless stretch member such as a chain or belt on the side where there is no take-up device between the drive devices in a short time during the preparation operation or at the start of the operation, and between the drive devices. The relative origin adjustment between the drive devices is performed in a short time with the tension of the endless stretch member on the side where the take-up device is not provided within an appropriate range, and the operation sequence will be described below.
[0021]
(1) The brake B2 of the driving device D2 is deactivated (hereinafter referred to as “off”), and the driving device D1 is driven.
As a result, the slack of the chain 2 on the side where there is no take-up device between the drive devices D1 and D2 (L in FIG. 1) is first absorbed into the take-up device 3 side, and then the take-up device between the drive devices D1 and D2 The chain 2 on the side where there is no tension (L in FIG. 1) is tensioned, and the drive device D2 that is not driven is rotated by driving the chain 2 by the drive device D1.
[0022]
(2) The change amount of the output pulse of the absolute position detector E2 of the driving device D2 rotated by driving the chain 2 by the driving device D1 is the side without the take-up device between the driving devices D1 and D2 (in FIG. 1) L) When the predetermined change amount of the output pulse (the first output pulse predetermined change amount) at which the tension of the chain 2 exceeds the appropriate range is reached, the drive device D1 is stopped (the brake B1 of the drive device D1 is turned off). The operation state (hereinafter referred to as “on”)). Further, the brake B2 of the driving device D2 is turned on simultaneously with the turning on of the brake B1 of the driving device D1.
Here, the predetermined change amount of the first output pulse is obtained in advance by experiment to obtain a value at which the tension of the chain 2 exceeds the appropriate range, and is stored in the storage device 4b in the control device 4. The stored data is used when driving the driving device D1.
(Refer to (3) below for the proper range of chain 2 tension.)
[0023]
The driving of the conveyor by a plurality of driving devices is a configuration used particularly when the conveyor is long. As described above, only the driving device D1 is driven to absorb the slack of the very long chain 2, and further In order to rotate the driving device D2 by driving the chain 2 by the driving device D1, a very large torque is required. Therefore, in a state where the drive device D2 is rotated by driving the chain 2 by the drive device D1 after absorbing the slack of the chain 2, the side where there is usually no take-up device between the drive devices D1 and D2 (L in FIG. 1) The tension of the chain 2 is larger than the appropriate range. Therefore, an operation for relaxing the tension of the chain 2 is required as in (3) below.
[0024]
(3) In the state of (2), the tension of the chain 2 on the side without the take-up device between the driving devices D1 and D2 (L in FIG. 1) exceeds the appropriate range, so the tension is relieved. Then, the following operation is performed in order to keep the tension of the chain 2 within an appropriate range.
With the driving device D1 stopped, the driving device D2 is driven to relieve the tension of the chain 2, and the output pulse of the absolute position detector E2 changes so that the tension of the chain 2 is within an appropriate range. When the predetermined change amount (second output pulse predetermined change amount) is reached, the driving device D2 is stopped (the brake B2 of the driving device D2 is turned on).
By this operation, the tension of the chain 2 can be relaxed to an appropriate range, so that the loads on the driving devices D1 and D2 can be reduced.
[0025]
Here, the proper range of tension of the chain 2 on the side where there is no take-up device between the driving devices D1 and D2 (L in FIG. 1) is the configuration of the conveyor system (only in the horizontal portion, one in which the inclined portion is raised and lowered Etc.), the transport weight, the distance between the sprockets S1, S2, the diameters of the sprockets S1, S2, the specifications such as the size, structure and material of the chain 2, the tact time of the transport, etc. Therefore, according to these specifications and the first output pulse predetermined change amount, the second output pulse predetermined change amount is obtained in advance by experiments so that the tension falls within an appropriate range, and stored in the control device 4. It is stored in the device 4b and used when the driving device D2 is driven.
[0026]
The driving of the driving device D2 for relaxing the tension of the chain 2 can also be realized by driving the driving device D2 with a timer for a predetermined time.
[0027]
(4) In the state where the tension of the chain 2 is relaxed to an appropriate range in this way, the relative origin adjustment of the absolute position detector E1 of the driving device D1 and the absolute position detector E2 of the driving device D2 is performed as described above. Do as follows.
[0028]
In the above operation, the control device 4 takes the output data of the absolute position detectors E1 and E2 into the
[0029]
Note that an operation of turning off the brakes B1 and B2 for a certain period of time can be added between (2) and (3) of the operation sequence. By this operation, the tension of the long chain 2 can be made more uniform.
[0030]
The first output pulse predetermined change amount and the second output pulse predetermined change amount have different values depending on the specifications as described above, but the length of the conveyor is about 180 m and the conveyance pitch is about 6. 7m, resolution of absolute position detectors E1 and E2 is 720 pulses, conveyor speed is about 4.4 m / min, first output pulse predetermined change amount is 20 pulses, second output pulse predetermined change By setting the amount to 3 pulses, the slack of the endless stretch member is absorbed in a short time during the preparatory operation or at the start of operation, and the tensions of the endless stretch member are within the proper range to drive devices D1 and D2. The relative origin of the synchronous operation was able to be done in a short time.
[0031]
FIG. 2 is an explanatory diagram showing the configuration of the
[0032]
In the following, when the number of drive devices is n as shown in FIG. 2, the slack of the endless stretch member is absorbed in a short time, for example, at the time of preparation operation or at the start of operation, and the take-up between adjacent drive devices is taken up. An operation sequence in which relative origin adjustment between adjacent drive devices is performed in a short time with the tension of the endless stretch member on the side where no device is present within an appropriate range will be described.
[0033]
In the following, the upstream drive device rotated by the drive of the chain 2 by the downstream drive device in which the tension of the chain 2 on the side where there is no take-up device between adjacent drive devices exceeds the appropriate range. The predetermined change amount of the output pulse of the absolute position detector (first output pulse predetermined change amount) and the tension of the chain 2 on the side where there is no take-up device between adjacent drive devices are within an appropriate range. The predetermined change amount (second output pulse predetermined change amount) of the output pulse of the absolute position detector of the upstream drive device that is driven to relieve the tension is obtained in advance by experiments in the same manner as described in FIG. 4 is stored in the storage device 4b.
[0034]
(1) The brakes B2,..., Bn of the drive devices D2,..., Dn are turned off to drive the drive device D1.
[0035]
As a result, the slack of the chain 2 on the side without the take-up device between the drive devices D1 and D2 (L12 in FIG. 2) is first absorbed, and then the side without the take-up device between the drive devices D1 and D2 (FIG. 2). The chain 2 in the middle L12) is tensed, and the driving device D2 that is not driven is rotated by driving the chain 2 by the driving device D1.
[0036]
(2) When the change amount of the output pulse of the absolute position detector E2 of the drive device D2 rotated by driving the chain 2 by the drive device D1 becomes the predetermined change amount of the first output pulse, the drive device D1 is turned on. Stop (turn on the brake B1 of the driving device D1). Further, the brakes B2, B3,..., Bn of the driving devices D2, D3,.
[0037]
(3) In this state, the tension of the chain 2 on the side where there is no take-up device between the drive devices D1 and D2 (L12 in FIG. 2) exceeds the appropriate range. In order to keep the tension of the chain 2 within an appropriate range, the following operation is performed.
When the driving device D1 is stopped, the driving devices D2, D3,..., Dn are driven, and when the change amount of the output pulse of the absolute position detector E2 becomes the predetermined change amount of the second output pulse. The driving devices D2, D3,..., Dn are stopped (the brakes B2, B3,..., Bn are turned on).
By this operation, the tension of the chain 2 on the side where there is no take-up device between the driving devices D1 and D2 (L12 in FIG. 2) can be relaxed to be within an appropriate range.
[0038]
(4) In this state, the relative origin alignment of the absolute position detector E1 of the driving device D1 and the absolute position detector E2 of the driving device D2 is performed as described above.
[0039]
(5) The brakes B3,..., Bn of the drive devices D3,..., Dn are turned off, and the drive devices D1 and D2 are driven.
As a result, the slack of the chain 2 on the side without the take-up device between the drive devices D2 and D3 (L23 in FIG. 2) is first absorbed, and then the side without the take-up device between the drive devices D2 and D3 (FIG. 2). The chain 2 in the middle L23) is tensioned, and the driving device D3 that is not driven is rotated by driving the chain 2 by the driving devices D1 and D2.
[0040]
(6) When the change amount of the output pulse of the absolute position detector E3 of the drive device D3 rotated by driving the chain 2 by the drive devices D1 and D2 becomes the predetermined change amount of the first output pulse, the drive device D1 and D2 are stopped (the brakes B1 and B2 of the driving devices D1 and D2 are turned on). Further, the brakes B3,..., Bn of the driving devices D3,.
[0041]
(7) In this state, the tension of the chain 2 on the side where there is no take-up device between the driving devices D2 and D3 (L23 in FIG. 2) exceeds the appropriate range. In order to keep the tension of the chain 2 within an appropriate range, the following operation is performed.
When the driving devices D3,..., Dn are driven while the driving devices D1 and D2 are stopped, the amount of change in the output pulse of the absolute position detector E3 becomes the second output pulse predetermined change amount. The driving devices D3,..., Dn are stopped (the brakes B3,..., Bn are turned on).
By this operation, the tension of the chain 2 on the side where the take-up device between the drive devices D2 and D3 is not present (L23 in FIG. 2) can be relaxed to be within an appropriate range.
[0042]
(8) In this state, the relative origin adjustment of the absolute position detector E1 of the driving device D1 (or the absolute position detector E2 of the driving device D2) and the absolute position detector E3 of the driving device D3 is performed as described above. .
[0043]
(9) Similarly, the tension adjustment of the chain 2 between the driving devices Dn-2 and Dn-1 and the relative origin adjustment of the driving device are performed.
[0044]
(10) The brake Bn of the driving device Dn is turned off, and the driving devices D1, D2, D3,..., Dn-1 are driven.
As a result, the slack of the chain 2 on the side where there is no take-up device between the drive devices Dn-1 and Dn (Ln-1n in FIG. 2) is first absorbed, and then the take-up device between the drive devices Dn-1 and Dn. The chain 2 on the side where there is no tension (Ln-1n in FIG. 2) is tensioned, and the driving device Dn that is not driven is rotated by driving the chain 2 by the driving devices D1, D2, D3,. .
[0045]
(11) The amount of change in the output pulse of the absolute position detector En of the driving device Dn rotated by driving the chain 2 by the driving devices D1, D2, D3,. When the predetermined pulse change amount is reached, the driving devices D1, D2, D3,..., Dn-1 are stopped (B1, B2, B3,..., Bn-1 are turned on). Further, the brake Bn of the driving device Dn is turned on.
[0046]
(12) In this state, the tension of the chain 2 on the side where there is no take-up device between the driving devices Dn-1 and Dn (Ln-1n in FIG. 2) exceeds the appropriate range. The following operation is performed in order to alleviate the above and keep the tension of the chain 2 within an appropriate range.
The drive device Dn is driven in a state where the drive devices D1, D2, D3,..., Dn-1 are stopped, and the change amount of the output pulse of the absolute position detector En is the second output pulse predetermined change amount. When it becomes, the drive device Dn is stopped (the brake Bn is turned on).
By this operation, the tension of the chain 2 on the side where there is no take-up device between the driving devices Dn-1 and Dn (Ln-1n in FIG. 2) can be relaxed to an appropriate range.
[0047]
(13) In this state, the relative origin adjustment of the absolute position detector E1 of the driving device D1 (or the absolute position detector En-1 of the driving device Dn-1) and the absolute position detector En of the driving device Dn is performed as described above. Do as follows.
[0048]
In the operation sequence in the case where the number of drive devices in FIG. 2 is n, the tension adjustment between the adjacent drive devices and the relative origin adjustment of the drive devices are first performed on the most downstream side and sequentially performed upstream. In this case, the sequence is performed between any adjacent drive devices of n drive devices, and then a sequence in which relative origin adjustment is sequentially performed with adjacent drive devices is adopted. May be.
[0049]
As described above, the control device 4 sequentially adjusts the tension between adjacent drive devices in the n drive devices and performs the relative origin adjustment of the drive devices, so that the relative origin adjustment of all the n drive devices is performed. Can be performed automatically in a short time.
[0050]
In the above description, a so-called sprocket drive drive device has been described in which the chain 2 is directly driven by the sprocket. However, the chain 2 is driven by engaging the endless track with drive wheels with the chain 2 and driving the endless track. A drive device of a so-called caterpillar drive that indirectly drives may be used.
[0051]
【The invention's effect】
Since the conveyor device driven by the plurality of driving devices according to the present invention is configured as described above, an endless stretch member such as a chain or belt on the side where there is no take-up device between adjacent driving devices. Absorbing the slack in a short time during the preparatory operation or at the start of operation, etc., and performing relative origin adjustment between the drive devices in a short time in a state where the tension of the endless stretch member is within an appropriate range Therefore, the productivity can be improved.
[Brief description of the drawings]
FIG. 1 is a block diagram for explaining a configuration example of a drive system when a conveyor device driven by a plurality of drive devices according to an embodiment of the present invention has two drive devices.
FIG. 2 is an explanatory diagram showing an example in which the configuration of a conveyor device driven by a plurality of drive devices according to an embodiment of the present invention is n drive devices.
[Explanation of symbols]
1 Conveyor device
2 Chain
3 Take-up device
4 Control device
4a Input section
4b storage device
4c arithmetic unit
4d output section
5,6 Drive circuit
D1, D2,..., Dn drive device
S1, S2, ..., Sn sprocket
M1, M2, ..., Mn Motor
B1, B2, ..., Bn Brake
E1, E2, ..., En Absolute position detector
L, L12, L23, Ln-1n Side where there is no take-up device between drive units
Claims (5)
チェーン又はベルト等の無端状張架部材と、
前記無端状張架部材に係合するスプロケット又はプーリ等の回転体、及び/又は、駆動輪を備えると共に前記無端状張架部材に係合する無限軌道、並びに、前記回転体又は無限軌道の駆動輪を駆動するモータにより構成される、少なくとも2個の駆動装置と、
隣接する駆動装置間において、上流側駆動装置を非駆動状態として前記無端状張架部材の駆動により該駆動装置の前記回転体又は無限軌道の駆動輪を回転可能にし、下流側駆動装置を駆動して前記駆動装置間の無端状張架部材の弛みを吸収すると共に、前記下流側駆動装置による前記無端状張架部材の駆動により前記非駆動状態の上流側駆動装置の前記回転体又は無限軌道の駆動輪を所定量回転させた後に前記下流側駆動装置を停止させ、前記駆動装置間の無端状張架部材の張力を緩和するために前記上流側駆動装置を駆動して該駆動装置の前記回転体又は無限軌道の駆動輪を所定量回転させた状態で、前記隣接する駆動装置間の相対的な原点合わせを行う制御装置とを備えた、複数の駆動装置により駆動されるコンベア装置。In a conveyor device driven by a plurality of driving devices that performs synchronous operation after performing relative origin adjustment between the plurality of driving devices,
An endless stretch member such as a chain or belt;
A rotary body such as a sprocket or a pulley that engages with the endless stretch member, and / or an endless track that includes a drive wheel and engages with the endless stretch member, and driving of the rotary body or the endless track At least two drive units configured by motors for driving the wheels;
Between the adjacent drive devices, the upstream drive device is set in a non-drive state , and the endless stretch member is driven to rotate the rotating body of the drive device or the driving wheel of the endless track, thereby driving the downstream drive device. The slack of the endless stretch member between the drive devices is absorbed, and the endless stretch member is driven by the downstream drive device and the rotating body or endless track of the upstream drive device in the non-driven state is absorbed . After rotating the driving wheel by a predetermined amount, the downstream driving device is stopped, and the upstream driving device is driven to relieve the tension of the endless stretch member between the driving devices, and the rotation of the driving device is performed. A conveyor device driven by a plurality of drive devices, comprising a control device that performs relative origin adjustment between the adjacent drive devices in a state where a body or an endless track drive wheel is rotated by a predetermined amount.
チェーン又はベルト等の無端状張架部材と、
前記無端状張架部材に係合するスプロケット又はプーリ等の回転体、及び/又は、駆動輪を備えると共に前記無端状張架部材に係合する無限軌道、並びに、前記回転体又は無限軌道の駆動輪を駆動するモータにより構成される、少なくとも2個の駆動装置と、
前記回転体又は無限軌道の駆動輪の回転角度を検出する絶対位置検出器と、
隣接する駆動装置間において、上流側駆動装置を非駆動状態として前記無端状張架部材の駆動により該駆動装置の前記回転体又は無限軌道の駆動輪を回転可能にし、下流側駆動装置を駆動して前記駆動装置間の無端状張架部材の弛みを吸収し、さらに前記下流側駆動装置による前記無端状張架部材の駆動により前記上流側駆動装置の前記回転体又は無限軌道の駆動輪を回転させ、前記上流側駆動装置の絶対位置検出器の出力パルスの変化量が、前記駆動装置間の無端状張架部材の張力が適正範囲を超える大きさになる出力パルスの所定変化量になった時に前記下流側駆動装置を停止させ、前記上流側駆動装置を駆動して、前記上流側駆動装置の絶対位置検出器の出力パルスの変化量が前記駆動装置間の無端状張架部材の張力が適正範囲になる出力パルスの所定変化量になった時に前記上流側駆動装置を停止させることにより、前記駆動装置間の無端状張架部材の張力を適正範囲とした状態で、前記隣接する駆動装置間の相対的な原点合わせを行う制御装置とを備えた、複数の駆動装置により駆動されるコンベア装置。In a conveyor device driven by a plurality of driving devices that performs synchronous operation after performing relative origin adjustment between the plurality of driving devices,
An endless stretch member such as a chain or belt;
A rotary body such as a sprocket or a pulley that engages with the endless stretch member, and / or an endless track that includes a drive wheel and engages with the endless stretch member, and driving of the rotary body or the endless track At least two drive units configured by motors for driving the wheels;
An absolute position detector for detecting a rotation angle of the rotating body or the driving wheel of the endless track;
Between the adjacent drive devices, the upstream drive device is set in a non-drive state , and the endless stretch member is driven to rotate the rotating body of the drive device or the driving wheel of the endless track, thereby driving the downstream drive device. The slack of the endless stretch member between the drive devices is absorbed, and the endless stretch member is driven by the downstream drive device to rotate the rotating body of the upstream drive device or the driving wheel of the endless track. Thus, the amount of change in the output pulse of the absolute position detector of the upstream drive device has become a predetermined change amount of the output pulse in which the tension of the endless stretch member between the drive devices exceeds the appropriate range. Sometimes the downstream drive device is stopped and the upstream drive device is driven, and the amount of change in the output pulse of the absolute position detector of the upstream drive device is the tension of the endless stretch member between the drive devices. The proper range By stopping the upstream drive device when a predetermined amount of change in the force pulse is reached, the relative tension between the adjacent drive devices is maintained in a state where the tension of the endless stretch member between the drive devices is within an appropriate range. A conveyor device that is driven by a plurality of driving devices, and includes a control device that performs a simple origin adjustment.
チェーン又はベルト等の無端状張架部材と、
前記無端状張架部材に係合するスプロケット又はプーリ等の回転体、及び/又は、駆動輪を備えると共に前記無端状張架部材に係合する無限軌道、並びに、前記回転体又は無限軌道の駆動輪を駆動するモータにより構成される、少なくとも2個の駆動装置と、
前記回転体又は無限軌道の駆動輪の回転角度を検出する絶対位置検出器と、
隣接する駆動装置間において、上流側駆動装置のブレーキをオフにし、該上流側駆動装置を非駆動状態として前記無端状張架部材の駆動により該駆動装置の前記回転体又は無限軌道の駆動輪を回転可能にし、下流側駆動装置を駆動し、前記駆動装置間の無端状張架部材の弛みを吸収し、さらに前記下流側駆動装置による前記無端状張架部材の駆動により前記上流側駆動装置の前記回転体又は無限軌道の駆動輪を回転させ、前記上流側駆動装置の絶対位置検出器の出力パルスの変化量が、前記駆動装置間の無端状張架部材の張力が適正範囲を超える大きさになる出力パルスの所定変化量になった時に前記下流側駆動装置を停止させ、前記下流側駆動装置のブレーキをオンにし、前記上流側駆動装置を駆動して、前記上流側駆動装置の絶対位置検出器の出力パルスの変化量が前記駆動装置間の無端状張架部材の張力が適正範囲になる出力パルスの所定変化量になった時に前記上流側駆動装置を停止させることにより、前記駆動装置間の無端状張架部材の張力を適正範囲とした状態で、前記隣接する駆動装置間の相対的な原点合わせを行う制御装置とを備えた、複数の駆動装置により駆動されるコンベア装置。In a conveyor device driven by a plurality of driving devices that performs synchronous operation after performing relative origin adjustment between the plurality of driving devices,
An endless stretch member such as a chain or belt;
A rotary body such as a sprocket or a pulley that engages with the endless stretch member, and / or an endless track that includes a drive wheel and engages with the endless stretch member, and driving of the rotary body or the endless track At least two drive units configured by motors for driving the wheels;
An absolute position detector for detecting a rotation angle of the rotating body or the driving wheel of the endless track;
Between adjacent drive, turns off the brake of the upstream drive device, the drive wheel of the rotary body or the track of the driving device by the driving of the endless tension member and the upstream-side drive as a non-driven state It is possible to rotate, drive the downstream drive device, absorb the slack of the endless stretch member between the drive devices, and further drive the endless stretch member by the downstream drive device . The amount of change in the output pulse of the absolute position detector of the upstream drive device is such that the tension of the endless stretch member between the drive devices exceeds the appropriate range by rotating the rotating body or the driving wheel of the endless track. When the predetermined amount of change of the output pulse becomes, the downstream drive device is stopped, the brake of the downstream drive device is turned on, the upstream drive device is driven, and the absolute position of the upstream drive device Inspection When the change amount of the output pulse of the detector becomes a predetermined change amount of the output pulse in which the tension of the endless stretch member between the drive devices becomes an appropriate range, the upstream drive device is stopped, A conveyor device driven by a plurality of driving devices, comprising a control device that performs relative origin adjustment between the adjacent driving devices in a state where the tension of the endless stretching member is within an appropriate range.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003152549A JP3900113B2 (en) | 2003-05-29 | 2003-05-29 | Conveyor device driven by a plurality of driving devices |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003152549A JP3900113B2 (en) | 2003-05-29 | 2003-05-29 | Conveyor device driven by a plurality of driving devices |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2004352444A JP2004352444A (en) | 2004-12-16 |
JP3900113B2 true JP3900113B2 (en) | 2007-04-04 |
Family
ID=34047738
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2003152549A Expired - Fee Related JP3900113B2 (en) | 2003-05-29 | 2003-05-29 | Conveyor device driven by a plurality of driving devices |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3900113B2 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4893131B2 (en) * | 2006-07-14 | 2012-03-07 | 株式会社ダイフク | Transport equipment |
JP5115086B2 (en) * | 2007-08-09 | 2013-01-09 | 中西金属工業株式会社 | Conveyor device driven by a plurality of driving devices |
JP5174509B2 (en) * | 2008-03-31 | 2013-04-03 | Tcm株式会社 | Tandem drive belt conveyor |
JP5769331B2 (en) * | 2010-03-05 | 2015-08-26 | 日特エンジニアリング株式会社 | Pallet conveying device and pallet conveying method |
JP6046970B2 (en) * | 2012-09-26 | 2016-12-21 | 大森機械工業株式会社 | Film transport device and deep drawing packaging machine |
-
2003
- 2003-05-29 JP JP2003152549A patent/JP3900113B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JP2004352444A (en) | 2004-12-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5328911B2 (en) | Control device for handrail drive device | |
US3677388A (en) | Modular drive unit for a conveyor | |
AU2001292771B2 (en) | Escalator drive machine with drive belts for simultaneously propelling handrail and conveyor surface | |
JP3900113B2 (en) | Conveyor device driven by a plurality of driving devices | |
JPH05254772A (en) | Handrail drive mechanism for passenger conveyor | |
JPH03297792A (en) | Power transmission device, sprocket used for the device, and passenger conveyor | |
HU224594B1 (en) | Method and device for reducing the polygon effect in the reversing area of pedestrian conveyor systems | |
JP2019025916A (en) | Drawing apparatus | |
JP2007176671A (en) | Passenger conveyor | |
JP2003252560A (en) | Conveyor device | |
JP4355326B2 (en) | Passenger conveyor | |
JPH08198561A (en) | Pallet conveyor | |
JPH09315541A (en) | Tension device for endless traveling belt in conveyor | |
KR890007006Y1 (en) | Apparatus for driving a passenger conveyor | |
JP2011073827A (en) | Driving device of passenger conveyor | |
JP2020168663A (en) | Palette conveyance path, and pallet conveying device and pallet conveying method using the same | |
CN110352125B (en) | Film stretching apparatus | |
JP7118261B2 (en) | PASSENGER CONVEYOR BRAKE STATIC TORQUE MEASURING DEVICE AND PASSENGER CONVEYOR BRAKE STATIC TORQUE METHOD | |
JP3585407B2 (en) | Passenger conveyor | |
JP2003246578A (en) | Control apparatus for man conveyor | |
CN110713100B (en) | Passenger conveyor belt device | |
JP2010006486A (en) | Passenger conveyor | |
JP2002114472A (en) | Passenger conveyor and driving device | |
JP2010159128A (en) | Belt slip detecting device of escalator | |
JP6689221B2 (en) | Passenger conveyor |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20060818 |
|
A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20061011 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20061205 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20061218 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 3900113 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100112 Year of fee payment: 3 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100112 Year of fee payment: 3 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110112 Year of fee payment: 4 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110112 Year of fee payment: 4 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120112 Year of fee payment: 5 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120112 Year of fee payment: 5 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130112 Year of fee payment: 6 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130112 Year of fee payment: 6 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20140112 Year of fee payment: 7 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
LAPS | Cancellation because of no payment of annual fees |